Bee Lifecycle

The most interesting things I found about the bee lifecycle are that development for egg to an adult is on 21 days long. Something else I found interesting is that each adult bee has a task when it comes to caring for the larva like how the nurse bees feed the larva. Another thing I found interesting is how the life span of an adult worker bee varies with the time of the year. When the colony is active in spring and summer, worker bee may live as long as 5-6 weeks. During the inactive period in winter a worker bee lives five months or more. Next time I am in the garden/apiary I am going to try and identify which bees are newly hatched and I will do this by looking for bees that are light-grey. A question I have is how long is the life span of the queen bee?